摘要
对制冷压缩机的发展进行了简单的概述,统计计算了市场上几种主要容积式压缩机的电效率,并进行了对比和分析,结果表明:涡旋压缩机的电效率基本上在0.5～0.75之间,主要集中于0.6～0.7之间;活塞压缩机的效率基本上在0.4～0.7之间,而主要集中于0.5～0.65之间;螺杆压缩机的电效率基本在0.5～0.75之间,主要集中于0.65～0.75之间;压比为2～4时压缩机电效率达到最大。为制冷压缩机的设计、校核和计算提供基础和依据,为制冷系统的性能改进提供方向。
This paper has briefly summarized the development of refrigerant compressor; and accounted the statistic of the electrical effi- ciency for positive displacement refrigerant compressor. After comparing and analyzing the above data, it is shown that the electrical effi- ciency of scroll compressors basically varies from 0.5 to 0.75, with a focus on section 0.6-0.7 ; efficiency of piston compressors is basi- cally between 0.4 and 0.7, with a focus on section 0.5-0.65 ; efficiency of screw compressors is basically between 0.5 and 0.75, with a focus on section 0.65-0.75. Besides, the results show that the efficiency of compressors reaches its best when its compression ratio is be- tween 2 and 4, which provides foundation and basis for designing, checking and calculation of refrigeration compressor, and guides the performance improvements for refrigeration system.
出处
《制冷学报》
CAS
CSCD
北大核心
2013年第3期1-7,共7页
Journal of Refrigeration
基金
国家自然科学基金(51076111)资助项目~~
关键词
电效率
涡旋压缩机
活塞压缩机
螺杆式压缩机
蒸发温度
压比
electrical efficiency
scroll compressor
piston compressor
screw compressor
evaporative temperature
compression ratio
